You need a "Welcome To" ideally. I got a U last time using a county fairground sign that had the 'Welcome to' on it. You might check your counties. I found a city limits sign for Union City, GA at 33.597219986847, -84.54877182808549 but I can't tell if it says Welcome To on it or not in Street View. You might call the city hall and ask if they know of a welcome to Union City sign in their fine city.